Side Frame Antenna Layout for Flexible Satellite Device Orientation
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Solution Overview
Problem
Existing terminal electronic devices with side frame antennas for satellite navigation or communication require the user to orient the display towards the sky, causing inconvenience due to the perpendicular radiation direction of the linearly polarized antenna.
Innovation Solution
Utilizing a part of the conductive side frame as both a main radiator and a parasitic stub, with specific slots and tuning circuits, to enhance radiation efficiency and maintain directionality, allowing for improved user experience during satellite navigation or communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a side frame radiator is used to form a linearly polarized antenna for satellite navigation or communication, then the antenna can achieve satellite alignment, but the maximum radiation direction is perpendicular to the display, requiring the user to make the display face the sky which causes great inconvenience
Solution Approach 1:
The side frame is divided into multiple radiators with different orientations. Specifically, the first side frame radiator is arranged along the first side of the side frame, while the second side frame radiator is arranged along the second side of the side frame, creating multiple radiation directions simultaneously
Solution Approach 2:
The side frame structure serves dual purposes: it maintains its structural support function while simultaneously functioning as an antenna system with multiple radiators that can communicate with satellites from different orientations, eliminating the need for specific display orientation
2Device complexity
If the side frame is used as a single linearly polarized antenna radiator, then the antenna structure is simple, but the radiation efficiency and system efficiency are limited
Solution Approach 1:
Multiple side frame radiators are combined within the same side frame structure. The first and second side frame radiators are integrated into the side frame, sharing the same structural support while providing enhanced radiation efficiency through multiple radiation elements
Solution Approach 2:
The antenna system transitions from a single linearly polarized radiator to a multi-dimensional radiation structure by arranging radiators along different sides of the frame, creating spatial diversity in radiation patterns without significantly increasing structural complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution improves radiation and system efficiency of the antenna, maintaining gain while allowing for more flexible user orientation during satellite navigation or communication.
Implementation Method 1
a conductive part of a side frame of the electronic device is used as a main radiator and a parasitic stub of the antenna
Implementation Method 2
a first tuning circuit and a second tuning circuit, where the first radiator further includes a first connection point and a second connection point
Data Source
AI summary
An electronic device includes an antenna. A conductive part of a side frame of the electronic device is used as a radiator of the antenna. A first radiator of the antenna includes a conductive part of the side frame between a first position and a second position. Slots are provided at the first position and the second position of the side frame. The first position and the second position are located on a short side of the electronic device. An operating frequency band of the antenna includes a satellite communication frequency band.